package com.member.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;  
  
  
public class SecurityInterceptor implements HandlerInterceptor {  
  
 private static final String LOGIN_URL = "login.jsp";  
  
 @Override  
 public boolean preHandle(HttpServletRequest req, HttpServletResponse res, Object handler) throws Exception {  
  HttpSession session = req.getSession(true);  
  // 从session 里面获取用户名的信息  
  Object obj = session.getAttribute("ADMIN");  
  // 判断如果没有取到用户信息，就跳转到登陆页面，提示用户进行登陆  
  if (obj == null || "".equals(obj.toString())) {  
	  req.getRequestDispatcher("/identity/loginView").forward(req, res);
	  return false;
//	  return true;
  }  
  return true;  
 }  
  
 @Override  
 public void postHandle(HttpServletRequest req, HttpServletResponse res, Object arg2, ModelAndView arg3) throws Exception {  
 }  
  
 @Override  
 public void afterCompletion(HttpServletRequest req, HttpServletResponse res, Object arg2, Exception arg3) throws Exception {  
 }  
  
}  
  